64769232 has 80 divisors (see below), whose sum is σ = 183648960. Its totient is φ = 19507200.

The previous prime is 64769231. The next prime is 64769279. The reversal of 64769232 is 23296746.

64769232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64769231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126994 + ... + 127502.

It is an arithmetic number, because the mean of its divisors is an integer number (2295612).

Almost surely, 2^64769232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64769232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91824480).

64769232 is an abundant number, since it is smaller than the sum of its proper divisors (118879728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64769232 is a wasteful number, since it uses less digits than its factorization.

64769232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 766 counting only the distinct ones).

The product of its digits is 108864, while the sum is 39.

The square root of 64769232 is about 8047.9333993268. The cubic root of 64769232 is about 401.5961886487.

Adding to 64769232 its sum of digits (39), we get a triangular number (64769271 = T₁₁₃₈₁).

The spelling of 64769232 in words is "sixty-four million, seven hundred sixty-nine thousand, two hundred thirty-two".